Q420q C

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China GB Q420qC 桥梁用结构钢 and Mechanical Properties, Chemical Element, Cross Reference.

Datasheet for: Metals: Q420qC / Q420q C

Category	Grade	Standard	Region/Area	Standard Content
Metals	Q420q C	GB/T 714	China	桥梁用结构钢

Chemical composition(mass fraction)(wt.%) of the Q420q C

Element	Min	Max	Similar

The data is being updated,

Mechanical Properties of steel grade Q420q C

Yield R_p0.2 (MPa)	Tensile R_m (MPa)	Impact KV/Ku (J)	Elongation A (%)	Reduction in cross section on fracture Z (%)	As-Heat-Treated Condition	Brinell hardness (HBW)
444 (≥)	629 (≥)	13	31	34	Solution and Aging, Annealing, Ausaging, Q+T,etc	321

Physical Properties of steel grade Q420q C

Temperature (°C)	Modulus of elasticity (GPa)	Mean coefficient of thermal expansion 10-6/(°C) between 20(°C) and	Thermal conductivity (W/m·°C)	Specific thermal capacity (J/kg·°C)	Specific electrical resistivity (Ω mm²/m)	Density (kg/dm³)	Poisson’s coefficient, ν
12	-	-			0.41	-
236	225	-	23.3	312		-
336	-	33	44.2			142	442

Heat Treatment of steel grade Q420q C

Heat treated : 1654°C - 1887°C

Technological Curves of steel grade Q420q C

No Curve

Cross Reference Table (Equivalent Grade) of Q420q C

Grade	Standard	Country	Application
ASTM 5140
AISI 201
AISI 202
1.2767
17-4PH
AISI 1052
AISI 416Se
AISI 1330
AISI 205 Stainless Steel
AISI A10
AISI A2
AISI A3
AISI A4
1.0036
1.0037
SAE J403
UNS G10100
AMS 4924
ASTM A36
Electrode 100S-1

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